locomotive       
 noun [ C ] uk/ˌləʊ.kəˈməʊ.tɪv/ us/ˌloʊ.kəˈmoʊ.t̬ɪv/ (UK informal loco)
 火车头,机车
the engine of a train
 Synonym: engine
 locomotive      
adjective uk/ˌləʊ.kəˈməʊ.tɪv/ us/ˌloʊ.kəˈmoʊ.t̬ɪv/
 运动的;有运动力的
relating to movement or the ability to move